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Nina [5.8K]
4 years ago
6

!!!!Please answer ASAP!!!!!

Biology
1 answer:
tigry1 [53]4 years ago
6 0
Correct answer is 3 (c)
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In chickens, comb shape is determined by alleles at two loci (R, r and P, p). A walnut comb is produced when at least one domina
lina2011 [118]

Answer:

RpPp x RpPp

Explanation:

For the recessive trait to be expressed, both parents should have at least 1 allele for the recessive trait. Now you can see that both recessive traits were expressed in at least one of the off-springs, this means that both parents had the allele for each recessive trait.

3 0
4 years ago
What organelle is responsible for gas exchange inside a cell?
Inga [223]
I believe chloroplast
3 0
3 years ago
A population of 100 butterflies living on an acre of land loses three-quarters of its members when a sudden freeze in the spring
wel

Answer:

The correct answer is - a density independent factor.

Explanation:

Any external cause or change that leads to the change in the size of a population regardless of the density of the particular population known as a density independent factor in ecology.

Density independent factors are the factors that are not affected by the size of the population size of the species such as weather, climate and natural disasters.

Thus, the correct answer is -  a density independent factor.

5 0
3 years ago
explain why the top of an energy pyramid does not have an arrow showing energy going back down to the bottom.
SCORPION-xisa [38]
<span>The answer to your question is that all of the energy is ultimately radiated into empty outer space as heat. The second law of thermodynamics mandates that all processes that involve the transfer of energy MUST radiate a portion of this energy into space as waste heat. This is why when you run down the street you get hot and sweaty, and this is why automobiles MUST have a functioning radiator and nuclear power stations MUST have evaporation cooling towers or else be located near a large body of water to exchange excess waste heat into, etc., etc. It is also true that the transfer of energy at each step up the food chain is very inefficient. They say it takes around 50 lbs of corn to produce one pound of beef, and it probably takes 20-30 pounds of beef to produce one pound of human tissue. The rest of the energy just goes into your living room as radiated body heat. I hope this helps.</span>
4 0
4 years ago
Read 2 more answers
What kind of friction occurs as a fish swims through water
olga2289 [7]
A sliding friction occurs as a fish swims through water.
6 0
3 years ago
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